652 Harshberger: Plant formations of Nockamixon Rocks 



Rogers ^ fifty years ago described these cliffs as follows : 

 *' One stretch of precipice on the Pennsylvania side, kno\vn by 

 the name of the Nockamixon Rocks is an exceedingly striking 

 and picturesque range of beetHng chffs, rising sheer for 200 or 

 300 feet from the brink of the river with only a narrow roadway 

 between them, through a length of nearly three miles. Some of 

 the views from the base of these crags are almost grand ; and the 

 pictures they make with the river below are beautiful (figure 2). 



75*10' 



75 '05' 



■ Figure i. North part of Bucks County, Pennsylvania, north of Tohickon Creek, 

 displaying the contour lines of the rock clifis along the Delaware River, known as the 

 Nockamixon Rocks. Between the 20o.foot contour and canal lies the talus slope, 

 between 200 feet and 400 feet, the precipices, while above 400 feet are the crest slopes 

 Between Milford and Kintnersville lies the part surveyed botanically. 



Tufts of bushes and trees and climbing vines heighten by their 

 green hues the rich brown tints of the rocks, to the bold faces and 

 narrow ledges of which they lend a grace which no chffs without 

 vegetation ever possess. There are few more attractive drives or 

 walks by the river borders of Pennsylvania than the one at the 

 foot of the Nockamixon Rocks/' From the New Jersey side of 



^ " """ ■! I ■ Mm ■ I _^-- _ * ^ 



* Rogers, Henry D. The geology of Pennsylvania i : 48. 1858. 



